Name Info Provider Link
subscription/membership/fee required John Libbey Eurotext http://www.john-libbey-eurotext.fr/medline.md?doi=10.1684/ejd.2010.0933
Skin Cancer free resource MedlinePlus Health Information https://medlineplus.gov/skincancer.html
Full text from free resource Zurich Open Access Repository and Archive https://doi.org/10.5167/uzh-41524